#include <iostream>
using namespace std;
// 内联函数，交换两个数的值
inline void swap(int *a, int *b)
{
    int temp;
    temp = *a;
    *a = *b;
    *b = temp;
}

int main()
{
    int m, n;
    cout << "Please input two int number:";
    cin >> m >> n;
    cout << m << ", " << n << endl;
    swap(&m, &n);
    cout << m << ", " << n << endl;
    return 0;
}